The role of LPG in reducing vehicle exhaust emissions.

Examination of the Australian vehicle fleet leads to the conclusion that the time required for a significant penetration of forced change, for example the switch from leaded to unleaded petrol, largely depends on the average age of the vehicle type and vehicle use. A significant question for these vehicle groups is what to do with older vehicles as Australia harmonises its emission standards with those in Europe. Heavy duty vehicles are one such group. They are typically diesel powered, and of greater average age and cost than other vehicles. Because of their cost, many are unlikely to be replaced until the cost of operation forces change. Since they don't have to meet any new or recently introduced emission standards, environmental factors are rarely considered important. One possible solution to the environmental problems these vehicles cause may lie in the conversion of the diesel power plant to a cleaner fuel such as propane. In this paper the authors look at the potential within the heavy duty vehicle sector for conversion to propane and the improvements in emissions, both local and global. (Author/publisher) For the covering entry of this conference, please see ITRD abstract no. E209537. This paper may also be accessed by Internet users at: http://www.btre.gov.au/docs/atrf_02/program.html